VERNALIZATION AND DAYS TO ANTHESIS OF WINTER WHEAT UNDER CONTROLLED TEMPERATURE AND LIGHT

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Abstract
Eight varieties of winter wheat, Triticum aestivum L. emend Thell., were sown in soil and held in a growth cabinet for vernalization treatments of 0 to 11 weeks at 10 °C and 8 hours photoperiod, and then grown to maturity at 21 °C under continuous light. Floral development was induced in all varieties. Treatments of 5 to 8 weeks resulted in earlier anthesis and higher seed yields than shorter or longer periods. The variety Comanche required only 77 days from seeding to anthesis, including 5 weeks of vernalization.

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